Finding the Fourth Proportional to 171, 235.74 and 121.99
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Solution
The fourth proportional to 171, 235.74 and 121.99 is: 168.17
Step by Step Solution
- Step 1: Write the proportion equation
171 : 235.74 = 121.99 : x - Step 2: Convert to fraction form
171/235.74 = 121.99/x - Step 3: Cross multiply
171x = 235.74 × 121.99 - Step 4: Simplify right side
171x = 28,757.92 - Step 5: Solve for x
x = 28,757.92/171 - Step 6: Final answer
x = 168.17
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.